Mixture-regulator.



0. WINKLER.

MIXTURE REGULATOR. APPLICATION IIILED 001219, 1907.

1,086, 1 12. Patented Feb. 3, 1914.

Witn asses: V .Im/nfior, B Otto WihKler,

OTTO WINKLER,

OFCijPEN-ICK, GERMANY, 'AssIcrNon To GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

MiXtrURE-REGuLAron.

' Specification of Letters Patent.

Patented Feb. 3,191.4.

- Application filed October 19, 1907. Serial No. 398,165.

regulation of the proportions of air and fuel.

in said charge under different operating conditions.- Ordinarily the quantity of air depends upon-the speed of the engine and the strength of the spring'which tends to.

keep the air inlet valve closed, the suction being stronger at higher speeds and the valve opening more widely at such times. But the spring must be very sensitive to respond to slight variations in suction and this entails certain difiiculties in operation for any length of time.

In order to avoid these difficulties the present invention consists of an air inlet valve controlled by a mechanical governor responsive to speed variations and other parts cooperating therewith to produce the desired results as set forth more fully in the following description and claims.

The accompanying drawing is a sectional and diagrammatic view of one form of my invention. y I

The casingl has an inlet 5 for air and an outlet 4 for delivering the combustible mixture to the engine through a suitable connection, the movement of the fluid being effected by the suction action of the piston. Within the casing are two cylinders 13 and -14 with theii -adjac'entinner ends joined by a larger cylindrical member 18 communicating with the outlet 4, the upper portions of-the cylinders merging with the wall of the casing. The outer ends of the cylinders are separated from the end walls of the casing by passages or openings 16 and 17. Passages 51 and 52 are formed between the outer walls of the cylinders 13 and 14 and the wall of the casing, said passages branching in opposite directions from the inlet 5 so that air can flow through them toward the ends of the. casing, then through the'openings 16 and 17 into and through said cyhnders to the outlet 4. Thus there 55 are two flow paths or conduits connecting tween them. The valve 3 the inlet with the outlet. The flow through the two conduits is controlled or regulated by the tubular slide valves 2 and 3. The valve 2 is mounted in the cylinder 13 and has a rod 7 connected to it for adjusting it to vary theefi'ective openingof the-outlet 4,. said valve thus constituting the throttle valve of the engine.- The valve 3 is mounted in a sleeve 15 arranged in the cylinder 1% but cut away at-its outer end so, as not to obstruct the passage 16. The diameter of the valve 3 is such that' it canbc moved into telescopic relation withthe interior of the valve 2 if'desir'ed. The adjacent ends of the valves are notched so as to secure a further regulation of the flow opening beis connected by a rod 8 with a centrifugal governor such, for example, as the rotating ball governor 9 mounted on theshaft 10, driven by the engine, and actuating the rod 8 through a slidlng sleeve 11 and a lever 12. As shown,

the governor parts are at or near their full speed position.

A nozzle 6 passes through the casing and the wall of the cylinder 13 into the interior of the valve 2 andis connected with a sup ply tank or chamber in which a constant level of 'gasolene or other fuel is maintained. The air entering the'inlet 5 divides into two streams and the left-hand stream is carbureted' by fuel from the nozzle 6 as it, flows past said nozzle. The other. stream flows through the right-hand conduit and as it leaves the valve 3 it mixes with the carbureted air coming through the valve 2. \Vhen the speed is low, the governor balls are drawn toward each other by the connecting spring and the valve 3 is vmoved toward the end ofthe casing partially or wholly shutting off the flow through the right-hand path or conduit and thereby cutting down or throttling the "supply of pure air so that the mixture leaving the outlet 4 is richer in fuel. Assuming the valve 3 to be at or near its extreme right position, as the engine speeds up the governor moves the valve to the left permitting a greater flow of air so that the mixture becomes relatively weaker. Furthermore, as the left end of the valve 3 approaches nearer the end of the valve 2 it acts to throttle the quantity of mixture Dass-. ing to the outlet 4. If the valve 2 is adjusted by hand or by suitable means to admit just enough mixture to keep the engine -1of a of the valve 3 are not 'suflicient, however, tb

greatly affect the area of the outlet 4 when theth-rott'le valve 2 is drawn" to-the left so of the eng ne.

' 'fthe inner end; of the valve 2 performs; the

' tion that is movable to regulate the eflective;

running at a given speed, then the valve 3. willaet as agovernor valve'to maintainthe speed constant as the load varies. If the speed tends to increase, the valve 3' will be the speed slackens, the valve 3 will be moved valve, the other remaining stationary, willoutlet 4}. Movements of both valves toward 25,

' quickly asis sometimes necessary. Furby Letters Patent of the. United States, is

-'therefrom to a junction,'a conduit leading .60"

moved by the governor. toward or even into the valve 2, thereby cutting off the flow of mixture to a greater or less degree, whllelf to the right and permit a larger-quantityof mixture tofiow. The governing movements far as to {permit the predetermined maximum flowjcorresponding to the full output V'ewed in one way the innerlend of the 'valve 3 formsa seat for the valve 2, whilesame ofiice for the valve 3'. .By reason of this arrangement, a movement of either control the passage of the mixture to the or away from each other will effect an increase .or deer-casein the fuel supply'very thermore, the. arrangement described results in a very simple and co'mpact apparatus and one in which the coep'erative parts are located close together in the same casing Another advantageous feature resides in the fact that the pure air discharged through the valve 3 is, so to speak, projected into the mixture passing through the valve 2 and is thereby caused to thoroughly and intimately mix therewith.

What I claimas new and desire to secure 1. In a mixture regulator "-for internalcombustion engines, the combination of a casing having an inlet and oppositely disposed branch conduits communicating there: with, anoutlet conduit communicating with the branch conduits, a valve {locatedwingonei' of the branches and controllingf-the passage of air therethroughgvmeans 'for ca'rbureting' through the other branch I a-valve located in. the second branch conduit'by which the flowof carbu reted air 't'o'the' outlet conduit is controlled,- sa-id valves'being located and to end and armixture flowing through'the outlet.

' 2. A mixture re, ,'ulator for an internal combustion engine, comprising an inlet, pipe having oppositely disposed branches leading.

from the junction of the branches to the en-' gine cylinder, a valve in one branch forv regulating the flow of air therethrough, said valve having a. portion adjacent said juncspeed responsive device connected with the valve for moving it, means for ca-rbureting the a-ir flowing through the other'orsecond branch, and a manually controlled throttle valve in "the second branch having a portion adjacent said junction that is movable to regulate theeffective area of the inlet openpassing between the pposed faces of said portions of the two valves to said conduit.

3. A -mixture-regulator for an internal combustion engine, comprising a' casing having an inlet pipe and oppositely" disposed one of.-said' branches having two parallel portions with a common wall between them and apassagein the wall that connects the twoportions, av conduit leading fromlthe inder, a tubular valve cooperating with said passage to control the flow of air through said branch, a speed responsive 'device connected with said valve for moving it to con- .other branch, theends of said valves being in'gbetween them tosaid' conduit, and means throttlevalve. I 4. A mixture regulator for an internal ing'an inlet and oppositely disposed branch conduits having parallel portions provided with lateral connecting openings, an outlet leading from the junction, of the branches, a tubular valve cooperating with one of said openings to controlthe flow of air through one branch, a; speed responsive device connected with said valve for moving it, a tubular throttle-valve in-the other branch, said vvalves having opposed ends arranged-adjacent the junction, the-mixture flowing between saidaends tothe outlet and the valves being constructed and arranged to'telescope gone within the. other to tereloy vary the flow .to the outlet as theifi'rst valve .moves :under the action of the-speed res. onsive deinlet openingsat their outer the' junction opening to 'a greater or less extent, means for manually operating the throttle valve to vary the effective area of the opening at the junction, a device for area of the inlet opening of said conduit, a,

carlouretingv the air flowing through the throttle valve, .a tubular'valve in the oppotrol the flow, a tubularthrottle valve in the opposed and the combustible mixture flowvice, and means for carbureting t e air flowwith axially alined sections able longitudinally in one section to overlie ing of the conduit, the combustible mixture branches leading therefrom to a junction,

junction ofthe branches to .the'engine' cylfor carb-ureting the. air flowing through the p e5 combustion eng ne, comprising itCa-Sl1lgl121V- opening at the junction of said site section through which air flows to said opening at the junction, said valve being movable longitudinally and junction openings, and a speed responsive device for moving the last mentioned valve axially to vary the space between the adjacent ends of the valves to thereby vary the efiective area of the opening at said junction and also to vary the effective area of the inlet to saidsection.

6. In a mixture regulator for internal combustion engines, in combination with a casing having an inlet, an outlet and connecting passages, a hollow valve in the easing through which the mixture flows in one direction, a second hollow valve also located in the casingand through which air flows in the opposite direction, said valves being 011 opposite sides of the outlet and presenting opposed ends between which combustible mixture andair flow from opposite directions to the outlet, means for carbureting the air passing through the mixture valve, means for moving the mixture valve, and means 'for moving the air valve independently of the mixture valve to control the distance between the ends of the valves.

7. In a mixture regulator, the combina tion with a casing containing an inlet, an outlet and passages through which a combustible mixture and pure air flow, said passages being so disposed that the mixture and air fiow toward each other .fro-m'opposite directions, hollow valves in said pas- Gopies of this patent may be obtained-for to overlie the inlet.

between said ends,

five cents each, Washington, D. C.

sages through which the mixture and air flow, said valves having opposed 'ends ad acent to said outlet that cooperate to control the flow of combustible mixture through the space between them, and a mechanism whereby either valve can be moved toward or away from the other to control the flow of combustible to the outlet.

8. In a mixture regulator, the combination of a casing, two axially alined cylinders in the upper part of the casing, the upper portion of whose walls merge with the wall of the casing, there being passages between the outer ends of the cylinders and the end walls of the casing, a cylindrical member that'unites the inner ends of the cylinders and has an outletleading therefrom through the wall of the casing, an air supply con du'it connected to the interior region of the casing between the cylinders and the casing walls, tubular valves in thecylinders having their ends movable into and out of the cylindrical member to vary the distance means for moving the valves relatively to each other in an axial direction, and a device for carbureting the.

air that passes through one of the valves.

In witness'whereofl I have hereunto set my hand this fifth day of October, 1907.

OTTO WINKLER;

/Vitnesses I JULrUs RUMLAND, KARL GERTEKEBEN.

by addressing the Commissioner of Patents, 

